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The Environments of Luminous Fast Blue Optical Transients: Evidence for a Compact Object and Wolf–Rayet Star Merger Origin

  • Authors: Anya E. Nugent, V. Ashley Villar, Brian D. Metzger, Christopher L. Fryer, Eric Burns, Alexa C. Gordon, Danielle Frostig, Yuxin Dong

Anya E. Nugent et al 2026 The Astrophysical Journal 1006 .

  • Provider: AAS Journals

Caption: Figure 2.

Left: the stellar-mass CDFs for the hosts of LFBOTs (blue; median and 68% interval), SNe II (purple dashed line), SNe Ibc (orange dotted line), SNe Ibn (green), SLSNe-I (pink), and LGRBs (yellow). LFBOT hosts are more massive than those of SLSNe-I and have statistically similar stellar-mass distributions to SNe Ibc, Ibn, II, and LGRB hosts. Right: the sSFR CDFs for the same transient populations. LFBOT hosts are less star-forming than SLSN-I hosts, and more star-forming than CCSNe (SNe II, Ibc, and Ibn) hosts. LFBOT hosts’ sSFR distribution is not statistically distinct from that of LGRB hosts.

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